The Alliance provides a global voice and forum for knowledge, expertise and co-ordinated action for and about co-operatives. The members of the Alliance are international and national co-operative organisations from all sectors of the economy, including agriculture, banking, consumer, fisheries, health, housing, insurance, and workers. The Alliance has members from 100 countries, representing close to one billion individuals worldwide. Around one hundred million people work for a co-operative globally. Co-operatives are successful values based businesses owned by their members. Whether they are customers, employees or residents, the members get an equal say in the business and a share of the profits.

In 2006 the ICA published the first major index of the world's largest co-operative and mutual enterprises, the ICA Global 300,[2] which demonstrated the scale of the co-operative movement globally.

In 2001 a new flag was adopted at the ICA General Assembly in Seoul, Korea, to avoid confusion with other rainbow flags, several of which had become very well known in the 20th century. The present flag shows the ICA seven-color logo on a white background. The logo depicts a quarter rainbow with a flock of stylized doves of peace scattering from the top and the letters ICA underneath. The rainbow has only six stripes (red, orange, yellow, green, light blue, dark blue) and the seventh color (purple) appears in the lettering under the rainbow. The flag exists in four different versions showing the ICA acronym in different languages (ACI in Spanish and French, IGB in German, and МКА in Russian).